// Handle the OnMapInfoEntered event from the item input UI
// MapSavedEventArgs contains the title, description, and tags that were entered
private async void MapItemInfoEntered(object sender, MapSavedEventArgs e)
{
try
{
// Get information entered by the user for the new portal item properties
var title = e.Title;
var description = e.Description;
var tags = e.Tags;
// Get the current extent
var currentViewpoint = _mapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry);
// Export the current map view for the item's thumbnail
RuntimeImage thumbnailImg = await _mapView.ExportImageAsync();
// See if the map has already been saved (has an associated portal item)
if (!_mapViewModel.MapIsSaved)
{
// Call a method on MapViewModel to save the map as a new portal item
await _mapViewModel.SaveNewMapAsync(currentViewpoint, title, description, tags, thumbnailImg);
// Report a successful save
UIAlertController alert = UIAlertController.Create("Saved map", "Saved " + title + " to ArcGIS Online", UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
else
{
// Map has previously been saved as a portal item, update it (title, description, and tags will remain the same)
_mapViewModel.UpdateMapItem();
// Report success
UIAlertController alert = UIAlertController.Create("Updated map", "Saved changes to " + title, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
catch (Exception ex)
{
// Report save error
UIAlertController alert = UIAlertController.Create("Error", ex.Message, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
finally
{
// Get rid of the item input controls
if (_mapInfoUI != null)
{
_mapInfoUI.Hide();
_mapInfoUI = null;
}
}
}
private void SaveButtonClick(object sender, EventArgs e)
{
// Get the values entered in the text fields
var title = _titleTextField.Text.Trim();
var description = _descriptionTextField.Text.Trim();
var tags = _tagsTextField.Text.Split(',');
// Make sure all required info was entered
if (string.IsNullOrEmpty(title) || string.IsNullOrEmpty(description) || tags.Length == 0)
{
new UIAlertView("Error", "Please enter a title, description, and some tags to describe the map.", null, "OK", null).Show();
return;
}
// Fire the OnMapInfoEntered event and provide the map item values
if (OnMapInfoEntered != null)
{
// Create a new MapSavedEventArgs to contain the user's values
var mapSaveEventArgs = new MapSavedEventArgs(title, description, tags);
// Raise the event
OnMapInfoEntered(sender, mapSaveEventArgs);
}
}
